Coating articles with an olefinsulfur dioxide resin

Claim 1

IN A PROCESS FOR COATING AN ARTICLE WITH A 1-BUTENE-SULFUR DIOXIDE RESIN, WHICH COMPRISES FORMING AN AQUEOUS EMULSION OF LIQUID 1-BUTENE AND A MOLECULAR EXCESS OF SULFUR DIOXIDE, SUBJECTING SAID EMULSION TO REACTION CONDITIONS TO PRODUCE IN LATEX FORM A HETEROPOLYMERIC RESIN FORM SAID BUTENE AND SULFUR DIOXIDE FOR A TIME SUFFICIENT TO EFFECT REACTION OF 70 TO 97 PER CENT OF SAID BUTENE, VAPORIZING FROM A RESULTING LATEX UNREACTED 1-BUTENE AND SULFUR DIOXIDE, THE IMPROVEMENT WHICH COMPRISES IN COMBINATION THE STEPS; ADDING TO SAID LATEX SODIUM HYDROXIDE IN AN AMOUNT SUFFICIENT TO RAISE THE PH THEREOF TO BETWEEN 4 AND 8, COATING AN ARTICLE WITH SAID LATEX, DRYING SAID COATED ARTICLE AT A TEMPERATURE BETWEEN 150 AND 210* F., AND SUBSEQUENTLY HEATING SAID COATED AND DRIED ARTICLE AT A TEMPERATURE BETWEEN 230 AND 275* F. FOR A PERIOD BETWEEN ONE MINUTE AND ONE HOUR.